Package Management

How to Set Up VLAN Tagging on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up VLAN Tagging on FreeBSD 13

Introduction How to Set Up VLAN Tagging on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet […]

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FreeBSD 13 — turnserver — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — turnserver — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: turnserver — multiple vulnerabilities Related CVEs: CVE-2018-4056 CVE-2018-4058 CVE-2018-4059 Upstream summary: Mihály Mészáros reports: We made 4.5.1.0 release public today that fixes many vulnerabilities. It fix the following vulnerabilities: CVE-2018-4056 […]

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AlmaLinux 8 — batik — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — batik — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:5097 Upstream summary: Eclipse is an integrated development environment (IDE). The metadata for the eclipse:rhel8 module has been updated to remove the following unused profiles: c everything To check whether you have […]

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Debian 11 — yaws — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — yaws — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-2008 CVE-2009-0751 CVE-2009-4495 CVE-2011-4350 CVE-2011-5025 CVE-2016-1000108 CVE-2017-10974 CVE-2020-24379  +1 more Upstream summary: Yaws Webserver 1.55 and earlier allows remote attackers to obtain the source code for yaws scripts […]

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Debian 11 — simple-xml — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — simple-xml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000190 Upstream summary: SimpleXML (latest version 2.7.1) is vulnerable to an XXE vulnerability resulting SSRF, information disclosure, DoS and so on. Table of contents Symptom & Impact Environment […]

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Ubuntu 20.04 — olm — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — olm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 November 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5194-1 Related CVEs: CVE-2021-34813 Upstream summary: Denis Kasak discovered that Olm was not verifying the length of input being processed by the olm_pk_decrypt module, which introduced a stack-based buffer overflow […]

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SLES 15 — caribou — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — caribou — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 November 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:1943-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-3567 Upstream summary: A flaw was found in Caribou due to a regression of CVE-2020-25712 fix. An attacker could use this flaw to bypass screen-locking […]

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Oracle Linux 8 — python3 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python3 — vulnerability — patch and remediation guide (ELSA-2021-4399)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4399 Related CVEs: CVE-2021-3426 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — curl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — curl — vulnerability — patch and remediation guide (ELSA-2021-4059)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4059 Related CVEs: CVE-2021-22947 CVE-2021-22946 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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